Question 1

The statement: return 37, y, 2 * 3; returns the value ____.

Accepted Answer

A)   2
B)   3
C)   y
D)   6

Question 2

A function prototype is ____.

Accepted Answer

A)   a definition, but not a declaration
B)   a declaration and a definition
C)   a declaration, but not a definition
D)   a comment line

Question 3

Assume that all variables are properly declared. The following statement in a value-returning function is legal.
if (x % 2 == 0)
return x;
else
return x + 1;

Accepted Answer

A) True 
 B)False

Question 4

The following function heading in a C++ program is valid:
int funcExp(int u, char v, float g)

Accepted Answer

A) True 
 B)False

Question 5

Given the following function prototype: double tryMe(double, double) ;, which of the following statements is valid? Assume that all variables are properly declared.

Accepted Answer

A) cin >> tryMe(x) ; B) cout C) cout D) cout << tryMe(tryMe(float, float) , float) ;

Question 6

The ____________________ of an identifier refers to where in the program an identifier is accessible (visible).

Accepted Answer

scope

Question 7

Given the following function prototype: int test(float, char) ;, which of the following statements is valid?

Accepted Answer

A)   cout 
B)   cout 
C)   int u = test(5.0, '*') ;
D)   cout << test('12', '&') ;

Question 8

____________________ identifiers are not accessible outside of the function (block).

Accepted Answer

The answer of ____________________ identifiers are not accessible outside of...

Question 9

When you attach & after the dataType in the formal parameter list of a function, the variable following that dataType becomes a(n) ____________________ parameter.

Accepted Answer

The answer of When you attach & after the dataType...

Question 10

The execution of a return statement in a user-defined function terminates the program.

Accepted Answer

A) True 
 B)False

Question 11

Assume the following. static_cast('a') = 97 Static_cast('A') = 65 The output of the statement: Cout << static_cast(tolower('B') ) << endl; is ____.

Accepted Answer

A)   65
B)   67
C)   96
D)   98

Question 12

Which of the following function prototypes is valid?

Accepted Answer

A)   int funcExp(int x, float v) ;
B)   funcExp(int x, float v) {};
C)   funcExp(void) ;
D)   int funcExp(x) ; A

Question 13

The program that tests a function is called a(n) ____________________ program.

Accepted Answer

The answer of The program that tests a function is...

Question 14

The output of the statement: cout << tolower('$')  << endl;
Is ____.

Accepted Answer

A)   '$'
B)   '0'
C)   '1'
D)   An error, because you cannot use tolower with '$'. A

Question 15

The standard header file for the abs(x) function is ____.

Accepted Answer

A) B) C) D)

Question 16

Once you write and properly debug a function, you can use it in the program (or different programs) again and again without having to rewrite the same code repeatedly.

Accepted Answer

A) True 
 B)False

Question 17

The following return statement returns the value 10.
return 10, 16;

Accepted Answer

A) True 
 B)False

Question 18

The data type of a variable in a return statement must match the function type.

Accepted Answer

A) True 
 B)False

Question 19

Given the following function: int next(int x) 
{
 \quad Return (x + 1) ;
}
What is the output of the following statement?
Cout << next(next(5) )  << endl;

Accepted Answer

A)   5
B)   6
C)   7
D)   8

Question 20

A variable listed in a header is known as a(n)  ____ parameter.

Accepted Answer

A)   actual
B)   local
C)   formal
D)   function

Exam 6: User-Defined Functions

The statement: return 37, y, 2 * 3; returns the value ____.

Correct AnswerverifiedShow Answer

A function prototype is ____.

Correct AnswerverifiedShow Answer

Assume that all variables are properly declared. The following statement in a value-returning function is legal. if (x % 2 == 0) return x; else return x + 1;

Correct AnswerverifiedShow Answer

The following function heading in a C++ program is valid: int funcExp(int u, char v, float g)

Correct AnswerverifiedShow Answer

Given the following function prototype: double tryMe(double, double) ;, which of the following statements is valid? Assume that all variables are properly declared.

Correct AnswerverifiedShow Answer

The ____________________ of an identifier refers to where in the program an identifier is accessible (visible).

Correct Answerverifiedscope

Given the following function prototype: int test(float, char) ;, which of the following statements is valid?

Correct AnswerverifiedShow Answer

____________________ identifiers are not accessible outside of the function (block).

Correct AnswerverifiedShow Answer

When you attach & after the dataType in the formal parameter list of a function, the variable following that dataType becomes a(n) ____________________ parameter.

Correct AnswerverifiedShow Answer

The execution of a return statement in a user-defined function terminates the program.

Correct AnswerverifiedShow Answer

Assume the following. static_cast<int>('a') = 97 Static_cast<int>('A') = 65 The output of the statement: Cout << static_cast<int>(tolower('B') ) << endl; is ____.

Correct AnswerverifiedShow Answer

Which of the following function prototypes is valid?

Correct AnswerverifiedA

The program that tests a function is called a(n) ____________________ program.

Correct AnswerverifiedShow Answer

The output of the statement: cout << tolower('$') << endl; Is ____.

Correct AnswerverifiedA

The standard header file for the abs(x) function is ____.

Correct AnswerverifiedShow Answer

Once you write and properly debug a function, you can use it in the program (or different programs) again and again without having to rewrite the same code repeatedly.

Correct AnswerverifiedShow Answer

The following return statement returns the value 10. return 10, 16;

Correct AnswerverifiedShow Answer

The data type of a variable in a return statement must match the function type.

Correct AnswerverifiedShow Answer

Given the following function: int next(int x) { \quad Return (x + 1) ; } What is the output of the following statement? Cout << next(next(5) ) << endl;

Correct AnswerverifiedShow Answer

A variable listed in a header is known as a(n) ____ parameter.

Correct AnswerverifiedShow Answer

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Given the following function: int next(int x) { $\quad$ Return (x + 1) ; } What is the output of the following statement? Cout << next(next(5) ) << endl;

Correct Answer
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